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Re: CGS78 Envelope Generator- Problems with Decay and Sustain stages

2016-01-21 by piano392003

I'm resurrecting this message in the hope that somebody can help me.
I ordered these PCBs from Ken Stone in 2013. It comes in a pair of two. I built one with parts that I sourced from mail order. I built the second one from parts that I sourced from Elby Designs, at least a year later. Both units have the same issue. Attack and Decay works fine, although the scope shows the times are rather quick. I can't get the Sustain step to happen. I am using a ±12Volt supply.

Does anyone have a clue?
Thanks,

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